Wednesday
July 30, 2014

Homework Help: ap calculus

Posted by muffy on Friday, September 18, 2009 at 8:52pm.

The height s of a ball, in feet, thrown with an initial velocity of 112 feet per second from an initial height of 6 feet is given as a function of time t (in seconds) by
s(t)=-16t^2+112t+20.

1. What is the maximum height of the ball?

2. At what time does the maximum height occur?

I know how to find the maximum height using the formula -b/2a and I got 3.5. Usually when I find the maximum height I would plug 3.5 into the original equation. The problem says initial height of 6 feet which is not in the equation presented to me so I'm confused about how to solve for the time if the 6 feet is supposed to be somewhere.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Pre-Calc - The height s of a ball, in feet, thrown with an initial velocity of ...
Algebra - THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the...
Algebra - THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the...
algebra - You throw a tennis ball up in the air from an initial height of 4 feet...
Math - The height of a golf ball that is hit into the air with an initial ...
algebra - suppose a ball is thrown upward from a height of 4.5 feet with an ...
math - If a metal ball is thrown downward with an initial velocity of 22 feet ...
math - Baseball Nick throws a baseball upward with an initial velocity of 60 ...
math - An object that is falling or vertically projected into the air has it ...
Algebra - word problem - A red ball and a green ball are simultaneously tossed ...

Search
Members